make network scripts more robust, prevent multiple instances of pppd and udhcpc for...

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5290 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/base-files/default/lib/network/config.sh b/package/base-files/default/lib/network/config.sh
index a66c92b..25c7278 100755 (executable)
--- a/package/base-files/default/lib/network/config.sh
+++ b/package/base-files/default/lib/network/config.sh
@@ -120,8 +120,9 @@ setup_interface() {
                        env -i ACTION="ifup" INTERFACE="config" DEVICE="$iface" PROTO=static /sbin/hotplug "iface" &
                ;;
                dhcp)
+                       # prevent udhcpc from starting more than once
                        pid="$(cat "$pidfile" 2>/dev/null)"
-                       [ -n "$pid" -a -d "/proc/$pid" ] && kill -9 "$pid"
+                       [ -d "/proc/$pid" ] && grep udhcpc "/proc/${pid}/cmdline" >/dev/null 2>/dev/null && return 0
 
                        config_get ipaddr "$config" ipaddr
                        config_get netmask "$config" netmask

diff --git a/package/base-files/default/sbin/ifdown b/package/base-files/default/sbin/ifdown
index 073e80d..37d0918 100755 (executable)
--- a/package/base-files/default/sbin/ifdown
+++ b/package/base-files/default/sbin/ifdown
@@ -12,23 +12,26 @@ debug "### ifdown $cfg ###"
 config_get proto "$cfg" proto
 [ -z "$proto" ] && { echo "interface not found."; exit; }
 
-# kill active ppp daemon
-pid="$(cat /var/run/ppp-${cfg}.pid 2>/dev/null)"
-[ -n "$pid" -a -d "/proc/$pid" ] && {
-       kill $pid
-       sleep 1
-       [ -d "/proc/$pid" ] && kill -9 $pid
-}
-
-# kill any other process associated with the interface
+# kill active ppp daemon and other processes
 config_get ifname "$cfg" ifname
-pid="$(cat /var/run/${ifname}.pid 2>/dev/null)"
-[ -n "$pid" -a -d "/proc/$pid" ] && kill -9 $pid
+pids="$(cat /var/run/${ifname}.pid /var/run/ppp-${cfg}.pid 2>/dev/null)"
+for pid in $pids; do 
+       [ -d "/proc/$pid" ] && {
+               kill $pid
+               sleep 1
+               [ -d "/proc/$pid" ] && kill -9 $pid
+       }
+done
+rm -f /var/run/${ifname}.pid /var/run/ppp-${cfg}.pid
 
 config_get ifname "$cfg" ifname
-ifconfig "$ifname" >/dev/null 2>/dev/null && {
-       ifconfig "$ifname" 0.0.0.0 down
+config_get device "$cfg" ifname
+
+[ ."$device" != ."$ifname" ] || device=
+for dev in $ifname $device; do
+       ifconfig "$ifname" 0.0.0.0 down >/dev/null 2>/dev/null
+done
+
+config_get iftype "$cfg" type
+[ "$iftype" = "bridge" ] && brctl delbr "$ifname" >/dev/null 2>/dev/null
 
-       config_get iftype "$cfg" type
-       [ "$iftype" = "bridge" ] && brctl delbr "$ifname"
-}

diff --git a/package/base-files/default/sbin/ifup b/package/base-files/default/sbin/ifup
index c7055d4..81ec2c0 100755 (executable)
--- a/package/base-files/default/sbin/ifup
+++ b/package/base-files/default/sbin/ifup
@@ -4,10 +4,7 @@
 . /sbin/ifdown "$@"
 
 config_get iftype "$1" type
-case "$iftype" in
-       bridge) config_get ifname "$1" ifnames;;
-       *) config_get ifname "$1" ifname;;
-esac
+config_get ifname "$1" device
 
 for dev in $ifname; do
        setup_interface "$dev" "$1"

diff --git a/package/ppp/files/ppp.sh b/package/ppp/files/ppp.sh
index 343223a..1334005 100644 (file)
--- a/package/ppp/files/ppp.sh
+++ b/package/ppp/files/ppp.sh
@@ -7,6 +7,11 @@ scan_ppp() {
 
 start_pppd() {
        local cfg="$1"; shift
+       
+       # make sure only one pppd process is started
+       local pid="$(cat /var/run/ppp-${cfg}.pid 2>/dev/null)"
+       [ -d "/proc/$pid" ] && grep pppd "/proc/$pid/cmdline" 2>/dev/null >/dev/null && return 0
+
        config_get device "$cfg" device
        config_get unit "$cfg" unit
        config_get username "$cfg" username